{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:35:33.269409", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2023-Jun-17_to_2023-Jun-19_295.0_8.0"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2023060000539}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "June 17 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 19 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 58017.163678197336}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["Venezuela"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.South-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South America"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": []}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 8.0}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 295.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "295.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 291.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 295.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 7.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 10.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-06-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-68.75, 10.0], [-68.53, 10.53], [-68.0, 10.75], [-67.75, 10.65], [-67.5, 10.75], [-66.97, 10.53], [-66.82, 10.18], [-66.75, 10.15], [-66.5, 10.25], [-65.97, 10.03], [-65.82, 9.68], [-65.75, 9.65], [-65.68, 9.68], [-65.53, 10.03], [-65.0, 10.25], [-64.47, 10.03], [-64.25, 9.5], [-64.35, 9.25], [-64.32, 9.18], [-63.97, 9.03], [-63.75, 8.5], [-63.97, 7.97], [-64.32, 7.82], [-64.47, 7.47], [-65.0, 7.25], [-65.25, 7.35], [-65.5, 7.25], [-66.03, 7.47], [-66.18, 7.82], [-66.25, 7.85], [-66.5, 7.75], [-66.75, 7.85], [-67.0, 7.75], [-67.53, 7.97], [-67.68, 8.32], [-68.03, 8.47], [-68.25, 9.0], [-68.12, 9.3], [-68.53, 9.47], [-68.75, 10.0]]]]}, "2023-06-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-68.75, 10.0], [-68.53, 10.53], [-68.0, 10.75], [-67.75, 10.65], [-67.5, 10.75], [-66.97, 10.53], [-66.82, 10.18], [-66.75, 10.15], [-66.5, 10.25], [-65.97, 10.03], [-65.82, 9.68], [-65.75, 9.65], [-65.68, 9.68], [-65.53, 10.03], [-65.0, 10.25], [-64.47, 10.03], [-64.25, 9.5], [-64.35, 9.25], [-64.32, 9.18], [-63.97, 9.03], [-63.75, 8.5], [-63.97, 7.97], [-64.32, 7.82], [-64.47, 7.47], [-65.0, 7.25], [-65.25, 7.35], [-65.5, 7.25], [-66.03, 7.47], [-66.18, 7.82], [-66.25, 7.85], [-66.5, 7.75], [-66.75, 7.85], [-67.0, 7.75], [-67.53, 7.97], [-67.68, 8.32], [-68.03, 8.47], [-68.25, 9.0], [-68.12, 9.3], [-68.53, 9.47], [-68.75, 10.0]]]]}, "2023-06-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-68.75, 10.0], [-68.53, 10.53], [-68.0, 10.75], [-67.75, 10.65], [-67.5, 10.75], [-66.97, 10.53], [-66.82, 10.18], [-66.75, 10.15], [-66.5, 10.25], [-65.97, 10.03], [-65.82, 9.68], [-65.75, 9.65], [-65.68, 9.68], [-65.53, 10.03], [-65.0, 10.25], [-64.47, 10.03], [-64.25, 9.5], [-64.35, 9.25], [-64.32, 9.18], [-63.97, 9.03], [-63.75, 8.5], [-63.97, 7.97], [-64.32, 7.82], [-64.47, 7.47], [-65.0, 7.25], [-65.25, 7.35], [-65.5, 7.25], [-66.03, 7.47], [-66.18, 7.82], [-66.25, 7.85], [-66.5, 7.75], [-66.75, 7.85], [-67.0, 7.75], [-67.53, 7.97], [-67.68, 8.32], [-68.03, 8.47], [-68.25, 9.0], [-68.12, 9.3], [-68.53, 9.47], [-68.75, 10.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.70297723474539}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.7894239025691372}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.889110718198424, 24.553435299930527, 24.991119354515547]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.94790700704351, 22.033736123579274, 21.889130047581943]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.7334694091364027, -2.043666470384156, -1.591135828186853]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.005709307513257, -2.70297723474539, -1.858363461288036]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6774340420247529, -2.0462498134080764, -1.5872463313616187]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.174846699371671, -3.1371580561125314, -1.9247933074433292]}}